Air chamber and drain storage pump.



C. F. BRANDENBERGER & M. W. REUTHER.

AIR CHAMBER AND DRAIN STORAGE PUMP.

APPLICATION FILED MAY 9. m1.

Patented Feb.12,1918.

CARL FJBRANDENBERGEB AND MARTIN W. REUTHER, 0F FORT MADISON, IOWA.

AIR CHAMBER AND DRAIN STORAGE PUMP.

Specification of Letters Patent.

Application filed May 8, 1917. Serial No. 167,251.

To all whom it may concern:

Be it known that we, CARL F. BRANDEN- BERGER and MARTIN W. REUTHER, citizens of the United States, residing at Fort Madison, in the county of Lee, State of Iowa, have invented new and'useful Air Chamber and Drain Storage Pumps, of which the following is a specification.

llhe present invention appertains generally to pumps, and relates more particularly to improvements in the suction pumps disclosed in our Patent No. 1,194,705, granted August 15, 1916. y

The improved construction has the same general functions of the structure covered by said patent, viz., to drain the water head downwardly below the frost line to prevent freezing, to provide an air suction chamber to facilitate the operation of the pump, and to quickly and effectively prime the pump when it is started. The construc.

tion disclosed herein, however, is provided with improved features to enhance the utility and effiiency of the device, there being a novel assemblage and arrangement of the component elements.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of' the invention herein disclosed, can be made within the scope of what is claimed, without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawing, wherein Figure 1 is a vertical section of one embodiment of the invention, portionsbeing broken away.

' Fig. 1 is a sectional view supplemental to Fig. 1.

The structure shown in Fi 1 may be used, if desired, in the modifie form shown in. Fig. 3.

Fig. 2 is a horizontal section through a part of the structure shown in 1.

Fig. 3 is a vertical section of another form of the invention, portions being broken away.

Fig. 4 is a section on the line M of Fig. 3.

Fig. 5 is a section on the line 5-5 of Fig. 6 showing another modification.

FFig. 6 is a section on the line 6-6 of 1g. 5.

Referring to Figs. 1 and 2, the numeral 1- designates the vertical barrel or cylinder "which has threadedly or otherwise secured to its upper end the reducer or coupling cap 2 having the central upstanding boss 3 into which the lower end of the outlet or eduction pipe 4 is threaded or otherwise engaged. A cap or head 5 is threadedly or otherwise engaged upon the lower end of the barrel 1 and has attached thereto the upper end of the suction or liq'uidpipe 6 through which the liquid is raised by suction into the barrel by the reciprocatory movement of the piston or plunger 7 within the barrel. Said piston is actuated by means of the plunger rod 8 connected at its lower end thereto and extending upwardly through the pipe 4., the piston being provided with an upwardly unseating check valve 9 provided with a restricted drain aperture 10, the same as in the patented structure.

In carrying out the invention, the drain storage chamber 11 surrounds and incloses the barrel 1, as seen in Fig. 1, and is composed of the upper and lower cup-shaped sections 12 and 13 having their open ends disposed together and provided with outturned flanges or lugs 14 bolted or otherwise fastened together, whereby the parts can be readily assembled. The upper section 12 is provided at its upper end or central portion with a boss 15 having an opening 16 receiving the boss 3 of the reducer or cap 2, and said opening 16 and boss 3 may be of non-circular outline. A nut 17 is threaded upon the pipe 4 and bears downwardly against the boss 15 to securely hold the parts in place, with the boss 15 clamped between the reducer or cap 2 and the nut 17. The lower section 13 has a lower central Patented Feb. 112, 19113.

' ranged boss 22 into which the upperend of 10.

boss 18 fittedupon thepipe 6, and a packing nut 19 is threaded upon the pipe 6 immediately below the boss 18, said boss and nut bein countersunk or recessed, as at 20, for holding the packing 21 which is pressed tightly against the pipe 6 when the nut 19 is tightened, thereby preventing leakage.

The cap 5 has a depending centrally-arapart, and the cap 5 having a passage 26 leading from the valve seat 25 toone side. A disk 27 of leather or equivalent material is placed upon the upper surface of the cap 5, and is clamped between said cap and lower end of the barrel 1 to hold the marginal portion of said disk firmly in place, and a securing strip 28 extends across the disk 27 and clamps it upon the cap 5 between the valve seats. The disk 27 is provided at opposite sides of the securing strip 28 with arcuate slots 29 surrounding the valve seats, and forming clack or check valves 30 and 31, respectively, seatable upon the valve seats 24 and 25 and swingable upwardly toward one another away from theseats. Suitable weights 32 are secured upon the valves to hold them upon their seats, and the securing element of the valve 31 has a restricted drain aperture 33 therethrough communicating with the passage 26. -An elbow 34 is engaged into the outer end of the passage 26 and ha connected thereto a tube 35 extending to the lower portion of the'drain storage chamber 11. The provision of the chamarrangement.

The operation is generally the same as wlth the structure shown in said patent, but

briefly stated is as follows :When the piston 7 is raised within the barrel, the suction created will unseat the valves 30 and 31, thereby drawing the water or other liquid upwardly through the pipe 6 into the barrel, and furthermore, the suction will extend by way of the passage 26 and tube 35 into thebeing raised thereby through the pipe 4 upon the next upward movement of the piston. When the pump is stopped, the check valve 30 being seated, will prevent, the head of water from draining downwardly through the pipe 6, but the restricted aperture 33 allows the water to drain slowly past the-valve 31 through the passage 26 and tube 35 into the chamber 11, it being kept in mind that the air within said chamber is rarefied due to the upward movement of the piston, thereby serving to suck the water into the drain storage chamber. This will enable the head of water to drain downwardly sufficiently to avoid freezing. When the pump is started, the upward movement of the piston 7 will result in the water being sucked from thelower portion of the chamber 11 through the tube 35 so as to flow into the barrel, thereby quickly and effectively priming the pump.

The invention comprises a means for increasing the suction, and with this end in view, a weight chamber 39 is provided, having a cap 40 through which the lower terminal of the pipe 6 extends downwardly into the chamber 39, as shown in Fig. 1. At nut 41 is threaded on the pipe 6 and bears downwardly against the cap 40 to prevent leakage. The lower portion of the liquid suction pipe, designated 6", is threaded or otherwise connected to the bottom of the chamber 39, the inner ends of the sections 6 and 6" being spaced apart to accommodate a suitable weight 42' which is connected by the wire or flexible element 43, extended upwardly therefrom through the pipe section 6, to the check valve 30. The'weight 42 permits the piston 7 to produce a higher degree of vacu-' um for a smaller portion of the stroke, as distinguished from a lower degree of Vacuum for a greater portion of the stroke. Since the weight 42 is carried by the flexible element 43, and since this flexible element extends through the pipe 6, the weight may be changed, for purposes of adjustment, with greater ease than would be the case if the weight were superadded on top of the valve 30.

In the modified form shown in Figs. 3 and 4, the cap 5' which is secured to the lower end of the barrel or cylinder 1 has the passage or port 23' leading upwardly from the the barrel. The cap 5"has an arcu'ate or angreases I nular passage 36 surrounding the port 23' and opening upwardly at several points, as at 37, to communicate with the barrel through the slot 29'. The capis-further provided with a passage or port 26 extending to one side and communicating with the passage 36, and the drain pipe 35 is connected to the cap 5 in communication with the port 26 for the drain of water from the barrel. A nut 38 is threaded upon the pipe section 6 and bears upwardly against the boss 22 to prevent leakage.

This modification also shows a means for increasing the suction through the pipe 35 when the pump is used in a comparatively shallow well, not requiring a considerable suction, which is desirable with the use of the drain storage chamber to rarely the air therein. Thus, a weight chamber 39 is provided, having the cap 40 through which the lower terminal of the pipe section 6 extends downwardly into the chamber 39. A nut 42]. is threaded upon the pipe 6' and bears downwardly against the cap 40 to prevent leakage. The lower portion of the liquid suction pipe, designated 6", is threaded or otherwise connected to the lower end or bottom of the chamber 39, with the sections 6' and 6" spaced apart to accommodate a suitable weight 42 which is connected by a wire or flexible element 43-extending upwardly therefrom through the pipe section 6 with the check valve 30.

The weight 42 and accompanying parts can also be used with the form shown in Fig. 1, wherein the wire or flexible element 43 is illustrated as extending upwardly through the pipe 6 and connected to the check valve 38.

Figs. 5 and 6 illustrate a modified form r of check valve for the drain storage. The

of the port 45 in the wall of the barrel.

plug 46 closes the chamber 44:, and the lug 143 has a valve seat 47 below the level or" the port 45, upon which a check valve 48 is seatable. Said valve 48 hasan upstanding stem 49 guided within a recess in the plug 46, and the check valve 48 has a restricted aperture 50 to permit of the drain of the liquid from the barrel through the port 45, chamber 44 and apgrture 50 to the air storage chamber (not shown). The lug 143 has a passage 51 leading from below the valve -18 and its seat 47 to one side and then upwardly for the connection of the pipe or tube 52 communicating with the air storage chamber. With this construction, the piston can move downwardly past the port 45, especially when this is desirable for removing the lower check .valve of the barrel, when such an arrangement is employed, as is well known.

Having thus described the invention, what isclaimed as new is:- y

1. In a suction pump, a barrel, a cap attached to the lower end thereof and having two passages, a liquid pipe communicating with one of said passage, a drain storage passage, and check valves seatable on said seats, the valve of the second mentioned passage having a restricted aperture.

3. In a suction pump, a barrel, a cap attached to the lower end thereof and havin a pair of upper valve seats and passages leading from said seats, a liquid pipe communicating with one assage, a drain storage chamber communicating with the other passage, and a flexible member clamped upon said cap between said valve seats and providing clack check valves seatable upon the seats, one of said parts having a restricted aperture between the barrel and drain storage chamber.

l. ln a suction pump, a barrel, a drain storage chamber surrounding and inclosing said barrel, the lower portions of said barrel and chamber being in communication, and means for restricting the flow from the barrel to said chamber.

5. in. a suction pump, a barrel, a drain storage chamber surrounding and inclosing said barrel, a tube cominunicating with the lower end of the barrel and extending to the lower portion of said chamber, and means for restricting the flow through said tube from the barrel to said chamber.

6. In a suction pump, a barrel, pipes extending upwardly and downwardly from the upper and lower ends ofsaid barrel, a drain storage chamber surrounding and inclosing the barrel and having its ends connected with said pipes, the lower portion of the barrel being in communication with the lower portion of said chamber, and means for restricting the flow from said barrel to the chamber.

7. In a suction pump, a barrel having upper and lower caps, upper and lower pipes connected to the respective upper and lower. caps, a drain storage chamber embodying upper and lower sections connected together tau and surroundin and inclosin said barrel,

the upper chum er section fitting the upper cap, means upon the upper pipe clamping the upper chamber sections to the upper cap, the lower chamber sections engaging the lower pipe, a tube communicating with the 5 lower portion of the barrel and extending to the lower portion of said chamber, and means for restricting the flow through said tube from the barrel to the chamber.

8. In a suction pump, a barrel, a liquid 10 pipe extending downwardly from the barrel, a check valve for supporting the head of water in the barrel, a chamber connected to said pipe, a weight in said chamber, and

a connection between said weight and valve extending through said pipe. 5 15 In testimony that we claim theforegoing as our own, we have hereto affixed our signatures in the presence of two witnesses.

CARL F. BRANDENBERGER. MARTIN w. REUTHER.

Witnesses.

H. J. Sonnonmm, W n. F. Keven. 

